//
//  AppDelegate.swift
//  Tanenbaum_blog
//
//  Created by Tanenbaum on 15/7/27.
//  Copyright © 2015年 GZJ. All rights reserved.
//

import UIKit

let ZuoJRootViewControllerSwitchNotification = "ZuoJRootViewControllerSwitchNotification"
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.
        //添加通知接受者
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "switchViewcontroller:", name: ZuoJRootViewControllerSwitchNotification, object: nil)
        
        setupApperance()
        
        window = UIWindow(frame: UIScreen.mainScreen().bounds)
        window?.backgroundColor = UIColor.grayColor()
        window?.rootViewController = defaultController()
        window?.makeKeyAndVisible()
        
        print(UserAccount.shareAccount)
        
        
        return true
    }
    
    deinit {
        // 注销通知 - 只是一个习惯
        NSNotificationCenter.defaultCenter().removeObserver(self)
    }
    //控制器切换函数
    func switchViewcontroller(name:NSNotification) {
        
        print("切换控制器：")
        let Vc = name.object as! Bool
        
        window?.rootViewController = Vc ? ZuoJMainController() : WelcomeViewController()
    }
    
    //设置默认初始化控制器
    private func defaultController() ->UIViewController {
        
        if !UserAccount.userLogon {
            return ZuoJMainController()
        }
        
        return isUpdate() ?  NewFeatureViewController(): WelcomeViewController()
    }

    
    // TO DO: 检查版本更新
    func isUpdate() ->Bool {
        
        
        //1.获取当前版本号
        let currentVersion = Double(NSBundle.mainBundle().infoDictionary!["CFBundleShortVersionString"]as! String)!
        
        //2 从沙盒取出之前的版本
        let sandBoxVersionKey = "sandBoxVersionKey"
        let sandBoxVersion = NSUserDefaults.standardUserDefaults().doubleForKey(sandBoxVersionKey)
        
        //3 把当前版本存入沙盒
       NSUserDefaults.standardUserDefaults().setDouble(currentVersion, forKey: sandBoxVersionKey)
        
        
        return currentVersion > sandBoxVersion
    }
    private func setupApperance() {
        
        UINavigationBar.appearance().tintColor = UIColor.orangeColor()
        UITabBar.appearance().tintColor = UIColor.orangeColor()
        
    }
    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

